she says soldier, the air force, national and city police all are being deployed to control and protect tens of thousands of mourners. >> this is a test for us. and we know that and believe that people will be watching how south africa perform. >> today a south african's pray, >> reporter: today a south african's pray, they also worry, the show of affection for mandela by world leaders and citizens might be more than this grieving country can bear. bill whitaker, cbs news, johannesburg. >> glor: defense secretary chuck hagel flies to pakistan tomorrow after meeting today with u.s. troops in afghanistan. in an interview today our state department correspondent margaret brennan asked if a total troop pullout is a possibility if president karzai does not sign the security pact allowing troops to stay past 2014. >> it's a very real possibility because if we don't have a bilateral security agreement which i have noted, that means we can't protect our forces that would be here after 2014. no international partners will come. afghanistan essentially will be alone. but we have no other option.